#3431AB#3431AB

#3431AB is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.187 H 275.2°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#3431AB
RGB	rgb(52, 49, 171)
HSL	hsl(241, 55%, 43%)
HSV	hsv(241, 71%, 67%)
CMYK	cmyk(69.6%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(29.07, 40.68, -64.49)
CIE-LCH	lch(29.07, 76.25, 302.25°)
OKLab	oklab(40.58% 0.0169 -0.1864)
OKLCH	oklch(40.58% 0.187 275.2)
XYZ	xyz(9.8627, 5.8660, 39.1327)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3431AB #A8AB31

analogous

#316BAB #3431AB #7131AB

triadic

#3431AB #AB3431 #31AB34

tetradic

#3431AB #AB316B #A8AB31 #31AB71

square

#3431AB #AB316B #A8AB31 #31AB71

split-complementary

#3431AB #AB7131 #6BAB31

monochromatic

#17164C #26237B #3431AB #504DCC #7F7DDA

Accessibility & contrast

On white

9.66

#3431AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3431AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3431AB

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3431AB	#FFFFFF	#000000	##FFFFFF
##3431AB	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAF

Deuteranopia (green-blind)

#003FA9

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3431ab;
/* rgb */ color: rgb(52, 49, 171);
/* oklch */ color: oklch(40.6% 0.187 275.2);

Tailwind

colors: {
  custom: {
    50: '#7c6ac5',
    500: '#3431ab',
    950: '#000000',
  },
}

SCSS

$custom: #3431ab;
$custom-light: #7c6ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3431ab",
  "rgb": {
    "r": 52,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 241.475,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40575,
    "c": 0.18713,
    "h": 275.2
  },
  "luminance": 0.05867
}

Semantic roles & 50–950 ramp

primary

#3431AB

secondary

#C0C275

accent

#DF49DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3431AB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →